反相微乳法合成淀粉微球的研究

以可溶性淀粉为原料,环氧氯丙烷为交联剂,Span60为乳化剂,植物油为油相,采用反相微乳法合成淀粉微球。以吸附量为指标进行正交试验,得到淀粉微球的最佳合成条件为:淀粉浓度14%、油相用量100 mL、乳化剂用量0.75 g、交联剂用量4.8 mL、搅拌速度1200 r/min。利用红外光谱和电子显微镜对产物进行表征,证明了可溶性淀粉与环氧氯丙烷发生了交联反应。

Preparing starch microspheres in inverse microemulsion

The starch microspheres were synthesized from soluble starch by inverse microemulsion with epichlorohydrin as the cross-linking agent,Span60 as the emulsifying agent and the plant oil as the organic phase.The results showed that the optimum conditions for synthesizing starch microspheres were as follows: starch solution 14%,dosage of oil phase 100 mL,dosage of surfactants 0.75 g,dosage of cross-linking agent 4.8 mL and stirring speed 1 200 r/min.The product was characterized by infrared red spectrum and electron microscope and the results proved that the soluble starch had cross-linked with epichlorohydrin.